Sanitary dkinking-ctrp



M. B. BAIRD AND a. A. WALLS.

SANITARY DRINKING CUP. APPLICATION FILED 050.26. 1919.

ATIURIYEY Patented May 17, 1921.

from the machine, as

' the cup.

ganying drawings,

uNrnan) STATES PATENT OFFICE.

MELVILLE 13.3mm: AND enononn. WALLS, or' KANSAS TerrY, mrssouiug snin Q WALLS ASSIGNOR, BY MESNE ASSIGNMENTS, or HIS men'rmo J. c. w. BLAND,

' or TULSA, OKLAHOMA.

SANITARY DRINKING-GUI;

Specification of Letters Patent.

Application filed December as, 1919. Serial No. 347,312.

and GEORGE A. WALLS, citizens of the United. States, residing at Kansas City in the countyof Jackson and State of Missouri, have invented certain new and useful Improvements in Sanitary Drinking-Cups; and we do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accom and to the letters and gures of reference marked thereon," which form apart of this specification;

This invention relates to a. drinking cup of the type known'a's the sanitary drinking cup, usually found in containers at public fountains and the like. I

One of the objects of the invention is to construct a simple and efficient cup form from a single sheet of material and normally flat inthe form of an envelop so that the cups may be easily arranged in stacks and introduced into receptacles from which they may be vended or ejected upon the.operation of certain mechanism or withdrawn will be well understood. In the drawings, Figure I is a per constructed in accordance with the present invention. I l

Fig. II is a, vertical, sectional view through Fig. ing the folds for reinforcing the joined walls, and' V Fig. IV is a perspective view of a blank, showing the sheet prior to being folded into on form.

eferring now to the drawings by numerals of reference:

1 designates a blank, be folded along the lines 2- -2 to [join the side edges of the blank together to form a tube and adapted to be folded. along the transverselines 3-3 to close the bottom and provide a reinforcing lip-engaging edge The lines 2-2' and 3-3 in-' and the lines 2-2 divide the body portion 4 from the side flaps 5 and 6 havin curved so that w en .the

cut-out portions 7 the mouth blank is folded into cup form,

' tom of the cup be provided; that is,

' tive view of a cup I is a cross sectional view illustrat- I be materially reinforced and Fig. IV, adapted to opening 14 will be provided by bending the adhesive facing flap '11 back upon the body portion 4 and sealing it thereto. The ends of the side flaps 5 and 6 are inclined and are adapted to be bent back upon themselves along the lines 9 and 10, the flap 6 being provided with adhesive material so that-1t can be pasted against. the outer face of the flap 5when the flaps 5 and 6 are folded together,

Patented. May '17, 192 1 as shown in Fig. III. The ends of the flaps 5 and 6, which are folded back upon' themselves, will, in con unction with the ad- 1 hesively faced flap 12, entirely close the botso that danger of leakage will be avoided. across the flaps 5. and 6, the over-turned edges 9 and 10 will. partake of the-form shown in Fig. II so that a double seal will roll caused by turning the ends of the flaps 5 and 6 over against themselves and by the sealing flap 12.

It will be observed that'the adhesive ma- When the flap 12 is pasted I a seal formed by the terial 12 does not extend entirely to the free end of the flap but that there is a strip-13 devoid of adhesive-material so that the tip be turned outwardly, as shown in Figs. I and II. This outwardly 4 turned lip or tip 13 enables the envelop to v of the flap 12 may be engaged by an ejector, as it lies flat 1n the stack so that it may be readily removed from its stack and projected through a slot in the wall of-the vending machine in a well known. manner,

By reference to observed that the flaps 5 and6 have ;relatively wide over-lapping portions so that when they are secured together, the; cup will FigsI and in, a will be J that a rela-' tively stiff centralreinforcing portion will be formed; therefore, there will be no dangerof the cup crumpling when it is being'gremoved from the machine.

'It will also be observed that the war-- I turned reinforcing edgeformed by the flap 11 will present a rounded appearance to the drinking edge of the on so that liability of the lips becoming abra of the cup will be eliminated.

What we claim and desire to secure by Letters-Patent is:

1. A drinking cup rectangular body portion,

blank comprising a ed by rough edges side flaps on the body portion having cutout, curved portions at one end of each and each flap having an inclined extension folded back upon the main flaps to form parts of a bottom for said cup, a flap at one end of-the blank, foldable back upon the blank to form a reinforcing lip-engaging. edge, and a flap at the other end of the blank foldable over the side flaps and over the bent-up ends thereof, the last named flap having adhesive material over the major portion thereof with an end strip devoid of adhesive material whereby the end in the finished cup may be curled outwardly to form an engaging portion.

2. A drinking cup comprislng a flexible receptacle, the walls of which normally'lie one against the other, one end wall having a reinforcing, lip-engaging portion, the

walls being reinforced at their point of connection, out-turned ejector-engageable end.

3. A drinking cup comprising a flexible receptacle consisting of a tube having an end-closing flap to provide a bottom, the

end-closing flap having an out-turned edge for engagement with an ejector.

In testimony natures.

MELVILLE B. BAIRD,

GEORGE A. WALLS.

whereof we aflix' our sigand a bottom member having a free, 

